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Diffstat (limited to 'programs/fullbench.c')
| -rw-r--r-- | programs/fullbench.c | 742 |
1 files changed, 742 insertions, 0 deletions
diff --git a/programs/fullbench.c b/programs/fullbench.c new file mode 100644 index 0000000..c465c88 --- /dev/null +++ b/programs/fullbench.c @@ -0,0 +1,742 @@ +/* + bench.c - Demo program to benchmark open-source compression algorithm + Copyright (C) Yann Collet 2012-2013 + GPL v2 License + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + + You can contact the author at : + - LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html + - LZ4 source repository : http://code.google.com/p/lz4/ +*/ + +//************************************** +// Compiler Options +//************************************** +// Disable some Visual warning messages +#define _CRT_SECURE_NO_WARNINGS +#define _CRT_SECURE_NO_DEPRECATE // VS2005 + +// Unix Large Files support (>4GB) +#if (defined(__sun__) && (!defined(__LP64__))) // Sun Solaris 32-bits requires specific definitions +# define _LARGEFILE_SOURCE +# define _FILE_OFFSET_BITS 64 +#elif ! defined(__LP64__) // No point defining Large file for 64 bit +# define _LARGEFILE64_SOURCE +#endif + +// S_ISREG & gettimeofday() are not supported by MSVC +#if defined(_MSC_VER) || defined(_WIN32) +# define BMK_LEGACY_TIMER 1 +#endif + + +//************************************** +// Includes +//************************************** +#include <stdlib.h> // malloc +#include <stdio.h> // fprintf, fopen, ftello64 +#include <sys/types.h> // stat64 +#include <sys/stat.h> // stat64 + +// Use ftime() if gettimeofday() is not available on your target +#if defined(BMK_LEGACY_TIMER) +# include <sys/timeb.h> // timeb, ftime +#else +# include <sys/time.h> // gettimeofday +#endif + +#include "lz4.h" +#define COMPRESSOR0 LZ4_compress +#include "lz4hc.h" +#define COMPRESSOR1 LZ4_compressHC +#define DEFAULTCOMPRESSOR COMPRESSOR0 + +#include "xxhash.h" + + +//************************************** +// Compiler Options +//************************************** +// S_ISREG & gettimeofday() are not supported by MSVC +#if !defined(S_ISREG) +# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG) +#endif + +// GCC does not support _rotl outside of Windows +#if !defined(_WIN32) +# define _rotl(x,r) ((x << r) | (x >> (32 - r))) +#endif + + +//************************************** +// Basic Types +//************************************** +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L // C99 +# include <stdint.h> + typedef uint8_t BYTE; + typedef uint16_t U16; + typedef uint32_t U32; + typedef int32_t S32; + typedef uint64_t U64; +#else + typedef unsigned char BYTE; + typedef unsigned short U16; + typedef unsigned int U32; + typedef signed int S32; + typedef unsigned long long U64; +#endif + + +//**************************** +// Constants +//**************************** +#define PROGRAM_DESCRIPTION "LZ4 speed analyzer" +#ifndef LZ4_VERSION +# define LZ4_VERSION "" +#endif +#define AUTHOR "Yann Collet" +#define WELCOME_MESSAGE "*** %s %s %i-bits, by %s (%s) ***\n", PROGRAM_DESCRIPTION, LZ4_VERSION, (int)(sizeof(void*)*8), AUTHOR, __DATE__ + +#define NBLOOPS 6 +#define TIMELOOP 2500 + +#define KNUTH 2654435761U +#define MAX_MEM (1984<<20) +#define DEFAULT_CHUNKSIZE (4<<20) + +#define ALL_COMPRESSORS -1 +#define ALL_DECOMPRESSORS -1 + + +//************************************** +// Local structures +//************************************** +struct chunkParameters +{ + U32 id; + char* origBuffer; + char* compressedBuffer; + int origSize; + int compressedSize; +}; + + +//************************************** +// MACRO +//************************************** +#define DISPLAY(...) fprintf(stderr, __VA_ARGS__) + + + +//************************************** +// Benchmark Parameters +//************************************** +static int chunkSize = DEFAULT_CHUNKSIZE; +static int nbIterations = NBLOOPS; +static int BMK_pause = 0; +static int compressionTest = 1; +static int decompressionTest = 1; +static int compressionAlgo = ALL_COMPRESSORS; +static int decompressionAlgo = ALL_DECOMPRESSORS; + +void BMK_SetBlocksize(int bsize) +{ + chunkSize = bsize; + DISPLAY("-Using Block Size of %i KB-\n", chunkSize>>10); +} + +void BMK_SetNbIterations(int nbLoops) +{ + nbIterations = nbLoops; + DISPLAY("- %i iterations -\n", nbIterations); +} + +void BMK_SetPause() +{ + BMK_pause = 1; +} + +//********************************************************* +// Private functions +//********************************************************* + +#if defined(BMK_LEGACY_TIMER) + +static int BMK_GetMilliStart() +{ + // Based on Legacy ftime() + // Rolls over every ~ 12.1 days (0x100000/24/60/60) + // Use GetMilliSpan to correct for rollover + struct timeb tb; + int nCount; + ftime( &tb ); + nCount = (int) (tb.millitm + (tb.time & 0xfffff) * 1000); + return nCount; +} + +#else + +static int BMK_GetMilliStart() +{ + // Based on newer gettimeofday() + // Use GetMilliSpan to correct for rollover + struct timeval tv; + int nCount; + gettimeofday(&tv, NULL); + nCount = (int) (tv.tv_usec/1000 + (tv.tv_sec & 0xfffff) * 1000); + return nCount; +} + +#endif + + +static int BMK_GetMilliSpan( int nTimeStart ) +{ + int nSpan = BMK_GetMilliStart() - nTimeStart; + if ( nSpan < 0 ) + nSpan += 0x100000 * 1000; + return nSpan; +} + + +static size_t BMK_findMaxMem(U64 requiredMem) +{ + size_t step = (64U<<20); // 64 MB + BYTE* testmem=NULL; + + requiredMem = (((requiredMem >> 25) + 1) << 26); + if (requiredMem > MAX_MEM) requiredMem = MAX_MEM; + + requiredMem += 2*step; + while (!testmem) + { + requiredMem -= step; + testmem = (BYTE*) malloc ((size_t)requiredMem); + } + + free (testmem); + return (size_t) (requiredMem - step); +} + + +static U64 BMK_GetFileSize(char* infilename) +{ + int r; +#if defined(_MSC_VER) + struct _stat64 statbuf; + r = _stat64(infilename, &statbuf); +#else + struct stat statbuf; + r = stat(infilename, &statbuf); +#endif + if (r || !S_ISREG(statbuf.st_mode)) return 0; // No good... + return (U64)statbuf.st_size; +} + + +//********************************************************* +// Public function +//********************************************************* + +static inline int local_LZ4_compress_limitedOutput(const char* in, char* out, int inSize) +{ + return LZ4_compress_limitedOutput(in, out, inSize, LZ4_compressBound(inSize)); +} + +static void* stateLZ4; +static inline int local_LZ4_compress_withState(const char* in, char* out, int inSize) +{ + return LZ4_compress_withState(stateLZ4, in, out, inSize); +} + +static inline int local_LZ4_compress_limitedOutput_withState(const char* in, char* out, int inSize) +{ + return LZ4_compress_limitedOutput_withState(stateLZ4, in, out, inSize, LZ4_compressBound(inSize)); +} + +static void* ctx; +static inline int local_LZ4_compress_continue(const char* in, char* out, int inSize) +{ + return LZ4_compress_continue(ctx, in, out, inSize); +} + +static inline int local_LZ4_compress_limitedOutput_continue(const char* in, char* out, int inSize) +{ + return LZ4_compress_limitedOutput_continue(ctx, in, out, inSize, LZ4_compressBound(inSize)); +} + +static void* stateLZ4HC; +static inline int local_LZ4_compressHC_withStateHC(const char* in, char* out, int inSize) +{ + return LZ4_compress_withState(stateLZ4HC, in, out, inSize); +} + +static inline int local_LZ4_compressHC_limitedOutput_withStateHC(const char* in, char* out, int inSize) +{ + return LZ4_compress_limitedOutput_withState(stateLZ4HC, in, out, inSize, LZ4_compressBound(inSize)); +} + +static inline int local_LZ4_compressHC_limitedOutput(const char* in, char* out, int inSize) +{ + return LZ4_compressHC_limitedOutput(in, out, inSize, LZ4_compressBound(inSize)); +} + +static inline int local_LZ4_compressHC_continue(const char* in, char* out, int inSize) +{ + return LZ4_compressHC_continue(ctx, in, out, inSize); +} + +static inline int local_LZ4_compressHC_limitedOutput_continue(const char* in, char* out, int inSize) +{ + return LZ4_compressHC_limitedOutput_continue(ctx, in, out, inSize, LZ4_compressBound(inSize)); +} + +static inline int local_LZ4_decompress_fast(const char* in, char* out, int inSize, int outSize) +{ + (void)inSize; + LZ4_decompress_fast(in, out, outSize); + return outSize; +} + +static inline int local_LZ4_decompress_fast_withPrefix64k(const char* in, char* out, int inSize, int outSize) +{ + (void)inSize; + LZ4_decompress_fast_withPrefix64k(in, out, outSize); + return outSize; +} + +static inline int local_LZ4_decompress_safe_partial(const char* in, char* out, int inSize, int outSize) +{ + return LZ4_decompress_safe_partial(in, out, inSize, outSize - 5, outSize); +} + +int fullSpeedBench(char** fileNamesTable, int nbFiles) +{ + int fileIdx=0; + char* orig_buff; +# define NB_COMPRESSION_ALGORITHMS 12 +# define MINCOMPRESSIONCHAR '0' +# define MAXCOMPRESSIONCHAR (MINCOMPRESSIONCHAR + NB_COMPRESSION_ALGORITHMS) + static char* compressionNames[] = { "LZ4_compress", "LZ4_compress_limitedOutput", + "LZ4_compress_withState", "LZ4_compress_limitedOutput_withState", + "LZ4_compress_continue", "LZ4_compress_limitedOutput_continue", + "LZ4_compressHC", "LZ4_compressHC_limitedOutput", + "LZ4_compressHC_withStateHC", "LZ4_compressHC_limitedOutput_withStateHC", + "LZ4_compressHC_continue", "LZ4_compressHC_limitedOutput_continue" }; + double totalCTime[NB_COMPRESSION_ALGORITHMS] = {0}; + double totalCSize[NB_COMPRESSION_ALGORITHMS] = {0}; +# define NB_DECOMPRESSION_ALGORITHMS 5 +# define MINDECOMPRESSIONCHAR '0' +# define MAXDECOMPRESSIONCHAR (MINDECOMPRESSIONCHAR + NB_DECOMPRESSION_ALGORITHMS) + static char* decompressionNames[] = { "LZ4_decompress_fast", "LZ4_decompress_fast_withPrefix64k", "LZ4_decompress_safe", "LZ4_decompress_safe_withPrefix64k", "LZ4_decompress_safe_partial" }; + double totalDTime[NB_DECOMPRESSION_ALGORITHMS] = {0}; + + U64 totals = 0; + + + // Loop for each file + while (fileIdx<nbFiles) + { + FILE* inFile; + char* inFileName; + U64 inFileSize; + size_t benchedSize; + int nbChunks; + int maxCompressedChunkSize; + struct chunkParameters* chunkP; + size_t readSize; + char* compressed_buff; int compressedBuffSize; + U32 crcOriginal; + + + // Init + stateLZ4 = malloc(LZ4_sizeofState()); + stateLZ4HC = malloc(LZ4_sizeofStateHC()); + + // Check file existence + inFileName = fileNamesTable[fileIdx++]; + inFile = fopen( inFileName, "rb" ); + if (inFile==NULL) + { + DISPLAY( "Pb opening %s\n", inFileName); + return 11; + } + + // Memory allocation & restrictions + inFileSize = BMK_GetFileSize(inFileName); + benchedSize = (size_t) BMK_findMaxMem(inFileSize) / 2; + if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize; + if (benchedSize < inFileSize) + { + DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20)); + } + + // Alloc + chunkP = (struct chunkParameters*) malloc(((benchedSize / chunkSize)+1) * sizeof(struct chunkParameters)); + orig_buff = (char*) malloc((size_t)benchedSize); + nbChunks = (int) (benchedSize / chunkSize) + 1; + maxCompressedChunkSize = LZ4_compressBound(chunkSize); + compressedBuffSize = nbChunks * maxCompressedChunkSize; + compressed_buff = (char*)malloc((size_t)compressedBuffSize); + + + if(!orig_buff || !compressed_buff) + { + DISPLAY("\nError: not enough memory!\n"); + free(orig_buff); + free(compressed_buff); + free(chunkP); + fclose(inFile); + return 12; + } + + // Init chunks data + { + int i; + size_t remaining = benchedSize; + char* in = orig_buff; + char* out = compressed_buff; + for (i=0; i<nbChunks; i++) + { + chunkP[i].id = i; + chunkP[i].origBuffer = in; in += chunkSize; + if ((int)remaining > chunkSize) { chunkP[i].origSize = chunkSize; remaining -= chunkSize; } else { chunkP[i].origSize = (int)remaining; remaining = 0; } + chunkP[i].compressedBuffer = out; out += maxCompressedChunkSize; + chunkP[i].compressedSize = 0; + } + } + + // Fill input buffer + DISPLAY("Loading %s... \r", inFileName); + readSize = fread(orig_buff, 1, benchedSize, inFile); + fclose(inFile); + + if(readSize != benchedSize) + { + DISPLAY("\nError: problem reading file '%s' !! \n", inFileName); + free(orig_buff); + free(compressed_buff); + free(chunkP); + return 13; + } + + // Calculating input Checksum + crcOriginal = XXH32(orig_buff, (unsigned int)benchedSize,0); + + + // Bench + { + int loopNb, nb_loops, chunkNb, cAlgNb, dAlgNb; + size_t cSize=0; + double ratio=0.; + + DISPLAY("\r%79s\r", ""); + DISPLAY(" %s : \n", inFileName); + + // Compression Algorithms + for (cAlgNb=0; (cAlgNb < NB_COMPRESSION_ALGORITHMS) && (compressionTest); cAlgNb++) + { + char* cName = compressionNames[cAlgNb]; + int (*compressionFunction)(const char*, char*, int); + void* (*initFunction)(const char*) = NULL; + double bestTime = 100000000.; + + if ((compressionAlgo != ALL_COMPRESSORS) && (compressionAlgo != cAlgNb)) continue; + + switch(cAlgNb) + { + case 0 : compressionFunction = LZ4_compress; break; + case 1 : compressionFunction = local_LZ4_compress_limitedOutput; break; + case 2 : compressionFunction = local_LZ4_compress_withState; break; + case 3 : compressionFunction = local_LZ4_compress_limitedOutput_withState; break; + case 4 : compressionFunction = local_LZ4_compress_continue; initFunction = LZ4_create; break; + case 5 : compressionFunction = local_LZ4_compress_limitedOutput_continue; initFunction = LZ4_create; break; + case 6 : compressionFunction = LZ4_compressHC; break; + case 7 : compressionFunction = local_LZ4_compressHC_limitedOutput; break; + case 8 : compressionFunction = local_LZ4_compressHC_withStateHC; break; + case 9 : compressionFunction = local_LZ4_compressHC_limitedOutput_withStateHC; break; + case 10: compressionFunction = local_LZ4_compressHC_continue; initFunction = LZ4_createHC; break; + case 11: compressionFunction = local_LZ4_compressHC_limitedOutput_continue; initFunction = LZ4_createHC; break; + default : DISPLAY("ERROR ! Bad algorithm Id !! \n"); free(chunkP); return 1; + } + + for (loopNb = 1; loopNb <= nbIterations; loopNb++) + { + double averageTime; + int milliTime; + + DISPLAY("%1i-%-19.19s : %9i ->\r", loopNb, cName, (int)benchedSize); + { size_t i; for (i=0; i<benchedSize; i++) compressed_buff[i]=(char)i; } // warmimg up memory + + nb_loops = 0; + milliTime = BMK_GetMilliStart(); + while(BMK_GetMilliStart() == milliTime); + milliTime = BMK_GetMilliStart(); + while(BMK_GetMilliSpan(milliTime) < TIMELOOP) + { + if (initFunction!=NULL) ctx = initFunction(chunkP[0].origBuffer); + for (chunkNb=0; chunkNb<nbChunks; chunkNb++) + { + chunkP[chunkNb].compressedSize = compressionFunction(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize); + if (chunkP[chunkNb].compressedSize==0) DISPLAY("ERROR ! %s() = 0 !! \n", cName), exit(1); + } + if (initFunction!=NULL) free(ctx); + nb_loops++; + } + milliTime = BMK_GetMilliSpan(milliTime); + + averageTime = (double)milliTime / nb_loops; + if (averageTime < bestTime) bestTime = averageTime; + cSize=0; for (chunkNb=0; chunkNb<nbChunks; chunkNb++) cSize += chunkP[chunkNb].compressedSize; + ratio = (double)cSize/(double)benchedSize*100.; + DISPLAY("%1i-%-19.19s : %9i -> %9i (%5.2f%%),%7.1f MB/s\r", loopNb, cName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000.); + } + + if (ratio<100.) + DISPLAY("%-21.21s : %9i -> %9i (%5.2f%%),%7.1f MB/s\n", cName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000.); + else + DISPLAY("%-21.21s : %9i -> %9i (%5.1f%%),%7.1f MB/s\n", cName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000.); + + totalCTime[cAlgNb] += bestTime; + totalCSize[cAlgNb] += cSize; + } + + // Prepare layout for decompression + for (chunkNb=0; chunkNb<nbChunks; chunkNb++) + { + chunkP[chunkNb].compressedSize = LZ4_compress(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize); + if (chunkP[chunkNb].compressedSize==0) DISPLAY("ERROR ! %s() = 0 !! \n", compressionNames[0]), exit(1); + } + { size_t i; for (i=0; i<benchedSize; i++) orig_buff[i]=0; } // zeroing source area, for CRC checking + + // Decompression Algorithms + for (dAlgNb=0; (dAlgNb < NB_DECOMPRESSION_ALGORITHMS) && (decompressionTest); dAlgNb++) + { + char* dName = decompressionNames[dAlgNb]; + int (*decompressionFunction)(const char*, char*, int, int); + double bestTime = 100000000.; + + if ((decompressionAlgo != ALL_DECOMPRESSORS) && (decompressionAlgo != dAlgNb)) continue; + + switch(dAlgNb) + { + case 0: decompressionFunction = local_LZ4_decompress_fast; break; + case 1: decompressionFunction = local_LZ4_decompress_fast_withPrefix64k; break; + case 2: decompressionFunction = LZ4_decompress_safe; break; + case 3: decompressionFunction = LZ4_decompress_safe_withPrefix64k; break; + case 4: decompressionFunction = local_LZ4_decompress_safe_partial; break; + default : DISPLAY("ERROR ! Bad algorithm Id !! \n"); free(chunkP); return 1; + } + + for (loopNb = 1; loopNb <= nbIterations; loopNb++) + { + double averageTime; + int milliTime; + U32 crcDecoded; + + DISPLAY("%1i-%-24.24s :%10i ->\r", loopNb, dName, (int)benchedSize); + + nb_loops = 0; + milliTime = BMK_GetMilliStart(); + while(BMK_GetMilliStart() == milliTime); + milliTime = BMK_GetMilliStart(); + while(BMK_GetMilliSpan(milliTime) < TIMELOOP) + { + for (chunkNb=0; chunkNb<nbChunks; chunkNb++) + { + int decodedSize = decompressionFunction(chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedSize, chunkP[chunkNb].origSize); + if (chunkP[chunkNb].origSize != decodedSize) DISPLAY("ERROR ! %s() == %i != %i !! \n", dName, decodedSize, chunkP[chunkNb].origSize), exit(1); + } + nb_loops++; + } + milliTime = BMK_GetMilliSpan(milliTime); + + averageTime = (double)milliTime / nb_loops; + if (averageTime < bestTime) bestTime = averageTime; + + DISPLAY("%1i-%-24.24s :%10i -> %7.1f MB/s\r", loopNb, dName, (int)benchedSize, (double)benchedSize / bestTime / 1000.); + + // CRC Checking + crcDecoded = XXH32(orig_buff, (int)benchedSize, 0); + if (crcOriginal!=crcDecoded) { DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n", inFileName, (unsigned)crcOriginal, (unsigned)crcDecoded); exit(1); } + } + + DISPLAY("%-26.26s :%10i -> %7.1f MB/s\n", dName, (int)benchedSize, (double)benchedSize / bestTime / 1000.); + + totalDTime[dAlgNb] += bestTime; + } + + totals += benchedSize; + } + + free(orig_buff); + free(compressed_buff); + free(chunkP); + } + + if (nbFiles > 1) + { + int AlgNb; + + DISPLAY(" ** TOTAL ** : \n"); + for (AlgNb = 0; (AlgNb < NB_COMPRESSION_ALGORITHMS) && (compressionTest); AlgNb ++) + { + char* cName = compressionNames[AlgNb]; + if ((compressionAlgo != ALL_COMPRESSORS) && (compressionAlgo != AlgNb)) continue; + DISPLAY("%-21.21s :%10llu ->%10llu (%5.2f%%), %6.1f MB/s\n", cName, (long long unsigned int)totals, (long long unsigned int)totalCSize[AlgNb], (double)totalCSize[AlgNb]/(double)totals*100., (double)totals/totalCTime[AlgNb]/1000.); + } + for (AlgNb = 0; (AlgNb < NB_DECOMPRESSION_ALGORITHMS) && (decompressionTest); AlgNb ++) + { + char* dName = decompressionNames[AlgNb]; + if ((decompressionAlgo != ALL_DECOMPRESSORS) && (decompressionAlgo != AlgNb)) continue; + DISPLAY("%-21.21s :%10llu -> %6.1f MB/s\n", dName, (long long unsigned int)totals, (double)totals/totalDTime[AlgNb]/1000.); + } + } + + if (BMK_pause) { printf("press enter...\n"); getchar(); } + + return 0; +} + + +int usage(char* exename) +{ + DISPLAY( "Usage :\n"); + DISPLAY( " %s [arg] file1 file2 ... fileX\n", exename); + DISPLAY( "Arguments :\n"); + DISPLAY( " -c : compression tests only\n"); + DISPLAY( " -d : decompression tests only\n"); + DISPLAY( " -H/-h : Help (this text + advanced options)\n"); + return 0; +} + +int usage_advanced() +{ + DISPLAY( "\nAdvanced options :\n"); + DISPLAY( " -c# : test only compression function # [%c-%c]\n", MINCOMPRESSIONCHAR, MAXCOMPRESSIONCHAR); + DISPLAY( " -d# : test only compression function # [%c-%c]\n", MINDECOMPRESSIONCHAR, MAXDECOMPRESSIONCHAR); + DISPLAY( " -i# : iteration loops [1-9](default : %i)\n", NBLOOPS); + DISPLAY( " -B# : Block size [4-7](default : 7)\n"); + //DISPLAY( " -BD : Block dependency (improve compression ratio)\n"); + return 0; +} + +int badusage(char* exename) +{ + DISPLAY("Wrong parameters\n"); + usage(exename); + return 0; +} + +int main(int argc, char** argv) +{ + int i, + filenamesStart=2; + char* exename=argv[0]; + char* input_filename=0; + + // Welcome message + DISPLAY( WELCOME_MESSAGE); + + if (argc<2) { badusage(exename); return 1; } + + for(i=1; i<argc; i++) + { + char* argument = argv[i]; + + if(!argument) continue; // Protection if argument empty + + // Decode command (note : aggregated commands are allowed) + if (argument[0]=='-') + { + while (argument[1]!=0) + { + argument ++; + + switch(argument[0]) + { + // Select compression algorithm only + case 'c': + decompressionTest = 0; + if ((argument[1]>= MINCOMPRESSIONCHAR) && (argument[1]<= MAXCOMPRESSIONCHAR)) + compressionAlgo = argument[1] - '0', argument++; + break; + + // Select decompression algorithm only + case 'd': + compressionTest = 0; + if ((argument[1]>= MINDECOMPRESSIONCHAR) && (argument[1]<= MAXDECOMPRESSIONCHAR)) + decompressionAlgo = argument[1] - '0', argument++; + break; + + // Display help on usage + case 'h' : + case 'H': usage(exename); usage_advanced(); return 0; + + // Modify Block Properties + case 'B': + while (argument[1]!=0) + switch(argument[1]) + { + case '4': + case '5': + case '6': + case '7': + { + int B = argument[1] - '0'; + int S = 1 << (8 + 2*B); + BMK_SetBlocksize(S); + argument++; + break; + } + case 'D': argument++; break; + default : goto _exit_blockProperties; + } +_exit_blockProperties: + break; + + // Modify Nb Iterations + case 'i': + if ((argument[1] >='1') && (argument[1] <='9')) + { + int iters = argument[1] - '0'; + BMK_SetNbIterations(iters); + argument++; + } + break; + + // Pause at the end (hidden option) + case 'p': BMK_SetPause(); break; + + // Unrecognised command + default : badusage(exename); return 1; + } + } + continue; + } + + // first provided filename is input + if (!input_filename) { input_filename=argument; filenamesStart=i; continue; } + + } + + // No input filename ==> Error + if(!input_filename) { badusage(exename); return 1; } + + return fullSpeedBench(argv+filenamesStart, argc-filenamesStart); + +} + |